Trusted Sources

Google Knowledge Graph: Entity isReference Domains

Dataset: 62,202 isReference domains | entities

Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.

The Google leak in May 2024 confirmed that Google explicitly associates people with their profile pages (isReference) and articles they have written (isAuthor).

⚠️ You Can't Use Just ANY Domain!

Out of 1,738,093 domains we monitor, only 62,202 qualify as isReference domains.

3.65%

Only 3.65% of domains earn isReference status from Google. Domain selection is critical.

Key concepts:

Wikipedia is NOT Required (or even your best bet)

Wikipedia: 6 million entities
Kalicube Pro: 71 million entities
Knowledge Graph: 50 billion entities

0.012%

Wikipedia covers only 0.012% of the Knowledge Graph. If your entity isn't in that 0.012%, you need to build a Knowledge Panel with ~30 isReference url instead.

📊 Kalicube's Entity Validation Dataset

1,738,093
Domains Checked Regularly
62,202
isReference Domains
3.58% qualify
23,295,240
URLs Monitored
76,039,567
Entities Tracked

💡 Even Small Niche Domains Have isReference Authority

Examples from our dataset (December 2025):

kalicube.com 21 entities
searchengineland.com 11 entities
jasonbarnard.com 86 entities
searchenginejournal.com 270 entities
entrepreneur.com 1,292 entities
forbes.com 2,823 entities

Your niche-specific domains may have similar authority in your category.

Top 100 isReference Domains for All Entity Types

Rank Domain Entity Count
1 wikipedia.org 1,622,000
2 linkedin.com 208,626
3 twitter.com 192,595
4 instagram.com 130,806
5 x.com 103,139
6 allocine.fr 102,373
7 amazon.com 90,536
8 facebook.com 71,745
9 deezer.com 56,433
10 namu.wiki 40,220
11 google.com 34,628
12 youtube.com 34,134
13 legacy.com 28,343
14 britannica.com 19,466
15 wiktionary.org 17,928
16 reddit.com 17,774
17 trustpilot.com 14,565
18 yahoo.com 13,868
19 dictionary.com 12,814
20 isfdb.org 11,537
21 fandom.com 11,308
22 crunchbase.com 10,431
23 microsoft.com 10,069
24 gutenberg.org 9,728
25 tiktok.com 9,387
26 metacritic.com 9,121
27 rottentomatoes.com 8,179
28 uk.com 7,323
29 espn.com 7,041
30 letterboxd.com 6,982
31 github.com 6,431
32 apple.com 5,790
33 quora.com 5,641
34 fifa.com 5,609
35 history.com 5,498
36 shopee.co.id 5,301
37 spotify.com 5,252
38 wikia.com 5,249
39 bbc.co.uk 4,968
40 pinterest.com 4,862
41 webuy.com 4,640
42 wikiwand.com 4,600
43 plus.lefigaro.fr 4,526
44 premiere.fr 4,494
45 theguardian.com 4,434
46 time.is 4,349
47 billboard.com 4,327
48 imdb.com 4,304
49 shopee.ph 4,216
50 epicgames.com 4,084
51 justwatch.com 4,051
52 hotels.com 4,020
53 forbes.com 3,941
54 ign.com 3,815
55 hbomax.com 3,692
56 bloomberg.com 3,681
57 vocabulary.com 3,684
58 soundcloud.com 3,510
59 indeed.com 3,488
60 bbc.com 3,476
61 vikidia.org 3,451
62 reuters.com 3,378
63 google.co.il 3,359
64 cambridge.org 3,329
65 ca.gov 3,324
66 playstation.com 3,246
67 dell.com 3,241
68 bing.com 3,186
69 nhl.com 3,142
70 genius.com 3,057
71 famousbirthdays.com 3,055
72 pornhub.com 2,995
73 itv.com 2,935
74 mit.edu 2,913
75 nih.gov 2,845
76 independent.co.uk 2,833
77 netflix.com 2,806
78 nytimes.com 2,751
79 google.com.br 2,680
80 radiofrance.fr 2,597
81 thesaurus.com 2,519
82 france24.com 2,464
83 search.google 2,418
84 nps.gov 2,379
85 chess.com 2,368
86 rateyourmusic.com 2,304
87 nintendo.com 2,302
88 dictionary.net 2,290
89 kpmg.com 2,276
90 nasa.gov 2,221
91 gog.com 2,187
92 loc.gov 2,161
93 discovery.ca 2,096
94 amazon.co.uk 2,078
95 aliexpress.com 2,076
96 house.gov 2,067
97 office.com 2,061
98 last.fm 2,053
99 wikiquote.org 2,035
100 dailymail.co.uk 2,002
101+ 62,102 additional niche-specific domains in full dataset covering 72,885,055 additional entities

Why This Data Matters

Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.

Entity Validation at Scale

Google's Knowledge Graph requires consistent entity recognition across validated domains.

  • Only 3.65% of domains (62202 out of 1738093) qualify as isReference
  • Brands typically need ~30 entity-validated url for a stable Knowledge Panel
  • Each niche has unique entity authority patterns
  • Generic "authority lists" miss 95%+ of niche-specific opportunities

⚠️ This Free List is Intentionally Limited

The top 100 domains shown above are dominated by massive generalist sites. For 99% of brands, the real opportunities lie in the niche-specific domains that only appear in our full platform dataset.

Recommended Reading:

🔐 Find YOUR Niche-Specific isReference Domains

We monitor 23M+ URLs across 1.7M domains to identify the exclusive 3.65% that qualify as isReference domains for 72M+ entities. The Kalicube Pro platform maps your competitive landscape and identifies your niche-specific opportunities in 15 minutes.

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